Earth System Science Data
Earth System Science Data
Earth System Science Data
Articles | Volume 18, issue 10
Articles | Volume 18, issue 10
https://doi.org/10.5194/essd-18-7743-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-18-7743-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 10
Data description article
 | 
26 Oct 2026
Data description article |  | 26 Oct 2026

Surface sediment grain-size characteristics of the Bohai, Yellow, and East China seas: a comprehensive survey based on unified laser diffraction analysis

Xiaoyong Duan, Bin Chen, Meina Li, Shuang Wang, Ping Yin, Bin Chen, and Jian Zhang

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Short summary
We measured grain size in 744 seafloor samples from China’s three major shelf seas. The results show a clear pattern: sediments become coarser from north to south, with fine river mud in the Bohai Sea and ancient sandy deposits on the East China Sea shelf. All analyses followed a single consistent protocol, making this the first unified dataset covering the entire Chinese continental margin. These data are freely available to support ocean research and coastal management.
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